2420457 has 16 divisors (see below), whose sum is σ = 3544128. Its totient is φ = 1460160.

The previous prime is 2420423. The next prime is 2420459. The reversal of 2420457 is 7540242.

2420457 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 2420457 - 2¹⁰ = 2419433 is a prime.

It is a super-2 number, since 2×2420457² = 11717224177698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1482 + ... + 2652.

It is an arithmetic number, because the mean of its divisors is an integer number (221508).

2^2420457 is an apocalyptic number.

It is an amenable number.

2420457 is a deficient number, since it is larger than the sum of its proper divisors (1123671).

2420457 is a wasteful number, since it uses less digits than its factorization.

2420457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 2420457 is about 1555.7817970397. The cubic root of 2420457 is about 134.2659195531.

Adding to 2420457 its reverse (7540242), we get a palindrome (9960699).

The spelling of 2420457 in words is "two million, four hundred twenty thousand, four hundred fifty-seven".